Prospective educators majoring in English Language Education need competence in various linguistic aspects, including phrase structure. Many students struggle with this due to traditional teaching methods that limit creativity and lead to misconceptions. To address this, a Student -Centered Learning (SCL) approach and the assisted Syntax Tree application were introduced in classes E and F. The study used a One-Group Pretest-posttest Design and SPSS software for data analysis. Results show that the SCL approach with the Syntax Tree application significantly reduces misconceptions about English phrase recognition and improves student engagement and learning outcomes.